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Article #107Rotating a bitmap
From: Edward J Kalenda
Date: Wed, 29 Jul 1992 05:46
Date: Wed, 29 Jul 1992 05:46
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I'm trying to rotate a bitmap by 90 degree increments and not getting anywhere with the 90 and 270 rotation. Using StretchBlt() I was able to do the 180 rotation by starting in the bottom-right corner and using negative width and height. The problem with 90 and 270 is that I need to exchange the X and Y axis of the bitmap, along with doing a mirror. Does anybody know how to do this? Or am I going to have to do it one bit at a time? -- Ed ekalenda@netcom.COM
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Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!swrinde!mips!mips!decwrl!csus.edu!netcomsv!mork!ekalenda From: ekalenda@netcom.com (Edward J Kalenda) Newsgroups: comp.windows.ms.programmer Subject: Rotating a bitmap Message-ID: <wdnmlyp.ekalenda@netcom.com> Date: 29 Jul 92 05:46:22 GMT Organization: Netcom - Online Communication Services (408 241-9760 guest) Lines: 13